Any update? Mine shakes when you get up to 65-75 but I haven't started checking anything yet. Hopefully you get it fixed.

 

Its better but I'm still not happy with the highway drive. Its my sons vehicle and he doesn't take it on the highway so I have put that project on hold I have bigger fish to fry but please let me know if you have any success with this issue

 

hey just a suggestions but I would try replacing the rear wheel bearings (in the axle tube so you'll need a bearing puller). Another thread had stated they replaced that and it fixed the problem GL though!

 

Im on my 2nd blazer with this issue. 1st was a 93 and new one is a 2002.same order of issue in both. Fuel spider had to be replaced, abs mod went bad and then vibration driving. 93 was the worst vibrating. Harmonic balancer!!!!!! I chased and spent tons of money on vibration.